I work with animals so I often deal with rescue animals. About a month ago I got two rescue chickens of about two months old that the owners wanted to euthanise due to some physical deformities. They are doing fine and I decided to get some baby chickens to eventually have a few backyard chickens. The day before our corona lockdown, I found baby chickens in an appalling condition at a pet shop. I simply could not leave them there, as I was sure they would have been killed or died during lockdown. So I came home with five two-week old Potch Koekoek chickens (South African Breed) with respiratory disease and pasty butts. One died the first evening, but the other four were doing fine. They are about three to four weeks old now and all seemed in a better condition. Last night one started to get lethargic, so this morning he had a soft swollen crop, probably sour crop. I messaged the crop and the wind immediately expelled. I know how to treat grown chickens, but is the protocol the same for baby chickens? Soft food, messaging of the crop, some yogurt with live culture? Please advise.